“烈性泻药”常见的英文表达是 “powerful/strong laxative” 或 “drastic laxative”。
powerful/strong laxative:强调泻药效力强,能快速产生通便效果。例如:This powerful laxative should only be used under medical supervision.(这种烈性泻药必须在医生指导下使用。 )
drastic laxative: “drastic” 有 “激烈的;极端的” 之意,“drastic laxative” 同样指药效猛烈的泻药。例如:Some people turn to drastic laxatives to lose weight quickly, which is extremely dangerous.(有些人为了快速减肥而服用烈性泻药,这是极其危险的。 )